I am new to PHP's OO (though not to OO or to PHP), but here's a fix and my
assessment of why it works:
In your tag functions, you need to change the $this reference to instead
refer to your $xml_parser object, thus:
function tag_open($parser,$tag,$attributes) {
global $xml_parser;
$xml_parser->result .= "TAG: ".$tag."<br>";
}
My speculation as to why this happens is that the actual parsing is going on
in the parser object you create in the xml() function. The tag_open
function is being called not as a method in your xml class but rather as a
simple callback function, so it does not get all the context of the xml
object... instead, it has the context of the parser object. So if you bring
the $xml_parser variable in as a global and then use it to set your result
variable, you should see the results you're looking for (I did).
Pete.
"Mirek Novak" <[EMAIL PROTECTED]> wrote in message
[EMAIL PROTECTED]">news:[EMAIL PROTECTED]...
> Hi,
>
> I'm new to this list, and was forced to join because of following
> problem, BTW searching through the archive ended without any useable
> results. The problem is in following code - which is little extended
> source from example in manual entry for xml_set_object() function. I've
> added one member variable called result and there I'm storing everything
> what is parsed through parser - I want to have control over what is
> parsed - then, when I wanted to show the result - variable was empty,
> but when u'll uncomments line in tag_open() function, will see
> interesting results - var. is being updated.
> Where is mistake?
>
> Mirek Novak
>
> ----------------------------------------- PHP code follows
> ------------------------------------
> <?
> class xml {
> var $parser;
> var $result;
>
> function xml() {
> $this->parser = xml_parser_create();
> $this->result="<br><u>result</u><br>";
> xml_set_object($this->parser,&$this);
> xml_set_element_handler($this->parser,"tag_open","tag_close");
> xml_set_character_data_handler($this->parser,"cdata");
> }
>
> function parse($data) {
> xml_parse($this->parser,$data);
> }
> function tag_open($parser,$tag,$attributes) {
> var_dump($parser,$tag,$attributes);
> $this->result.="TAG: ".$tag."<br>";
>
> // if u uncomment line below, U'll see, that $this->result really
> contains what it shoud
> // echo $this->result;
> }
>
> function cdata($parser,$cdata) {
> var_dump($parser,$cdata);
> $this->result.="DATA: ".$cdata."<br>";
> }
>
> function tag_close($parser,$tag) {
> var_dump($parser,$tag);
> }
>
> }
>
>
> $xml_parser = new xml();
> $xml_parser->parse("<A ID=\"hallo\">PHP</A>");
> echo $xml_parser->result;
>
> ?>
--
PHP General Mailing List (http://www.php.net/)
To unsubscribe, e-mail: [EMAIL PROTECTED]
For additional commands, e-mail: [EMAIL PROTECTED]
To contact the list administrators, e-mail: [EMAIL PROTECTED]
